Totic Implantable Collamer Lens for extreme high myopic astigmatism
10.3760/cma.j.issn.2095-0160.2011.05.017
- VernacularTitle:有晶状体眼散光矫治型后房型人工晶状体植入矫治超高度近视并散光的临床观察
- Author:
Zhi-gao, ZUO
;
Li, YIN
;
Su-bing, LIU
;
Ying, HOU
;
Xiao-li, NIE
;
Zhi-bin, MAI
;
Hong-ling, JIANG
- Publication Type:Journal Article
- Keywords:
Extreme high myopia;
Astigmatism;
Toric implantable collamer lens
- From:
Chinese Journal of Experimental Ophthalmology
2011;29(5):460-463
- CountryChina
- Language:Chinese
-
Abstract:
Background In recent years,with the contiunous progress of the refractive surgery,the operation skill of phakic intraocular lens(PIOL)implantation for correcting extreme high myopia,astigmatism,farsightedness have made greater progression,and its security,effectiveness in clinical attract much more attention. Objective This study was to evaluate the efficacy,safety and stability of Toric Implantable Collamer Lens(TICL)for extreme high myopic astigmatism. Methods This retrospective case series included 33 eyes of 27 patients from May 2008 to February 2009.A TICL was intraocularly implanted via a 3 mm clear corneal incision after paraocular anesthesia.Patients were examined preoperatively and followed-up at 1 day,1 week,1 month,3,6,12 and 18 months postoperatively.The examinations included uncorrected visual acuity,best corrected visual acuity(BCVA),slit lamp examination,refraction,intraocular pressure,endothelial cell morphometry,etc.The written informed consent was obtained from each patient before any medical procedure. Results The uncorrected visual acuity in 96.97% eyes was equal or improved after operation in comparison with BCVA of preoperation.The spherical refraction was within-1.00 D-+0.25 D.The cylinder refraction was within-1.00 D-0 D.The axial deviation of TICL within 10 degree was 93.94%(31/33).No significant differences were found in the intraocular pressure and endothelial cell morphometry between preoperation and postoperation(intraocular pressure:F=3.35,P=5.49;endothelial cell morphometry:t=1.835,P=0.082).The visual acuity and refraction were stable during the follow-up.Astigmatic axial rotation required surgical intervention on one eye.One eye occurred high intraocular pressure because of bigger TICL diameter.The intraocular pressure returned to normal after TICL was exchanged.No cataract occurred during the follow-up duration. Conclusion TICL implantation appears to be an effective,safe and reliable method for extreme high myopic astigmatism.
